derive the relationship between critical constant and van der waal's constants

The relationship between critical constants of the gases and their Van der Waal constants is as follows: (i) V c = 3b (ii) P c = a/27b 2 (iii) T c = 8a/27Rb (iv) The critical compressibility factor Z c is given b..

The relationship between critical constants of the gases and their Van der Waal constants is as follows: (i) V c = 3b (ii) P c = a/27b 2 (iii) T c = 8a/27Rb (iv) The critical compressibilit..

Derivation of de-Broglie Relationship - The relationship may be derived by combining the mass-energy relationship proposed by Max Planck and Einstein. According to Planck, photon of light having energy E is associated with a wave of frequency n as: ..

This relationship may be derived in the following manner: (1) For a salt of the type AB Let the solubility of sparingly soluble salt AB at a certain temperature be 'S' moles per litre. Then..

Substituting these values for pressure and volume, the ideal gas equation can now be written a..

Dimensional equations are used to validate the correctness of a physical equation. Dimensional equations are used to derive correct relationship between different physical quantities. Dimensional equations are used to convert one system of units to another. Dimensiona..

Adsorption is a surface phenomenon. In this process there is accumulation of a substance on the surface of a solid or a liquid as compared to the bulk of the solid or liquid. The substance which is adsorbed is called the adsorbate and the substance on to whose surface the adsorbate is adsorbed is c..

Charles' Law - Charles formulated this law in 1787 giving the relationship between volume and temperature of a gas. This law stated that at constant pressure, the volume of a given mass of gas increases or decreases by 1/273 of its volume at 0 o C for every one degree rise or fa..

By combining Boyle's and Charles' laws, an equation can be derived that gives the simultaneous effect of the changes of pressure and temperature on the volume of the gas. This is known as combined Ideal Gas Equation. A simple and direct method of deriving this equation is as fol..

m ). Molar volume of all gases under normal pressures (1 atm) and normal temperature (273K) have a value of 22.4 litre and contains 6.023 x 10 2 3 molecules. The number is called the Avogadro's number or Avogadro's constant and is denoted by N A . Avogadro's law is very useful in chemi..